A magnetostrictive sensor with high sealing performance and self-cleaning function

Abstract

The present invention discloses a magnetostrictive sensor with high sealing performance and self-cleaning function, comprising a sensor body, a sealing box movably provided on the outer wall of the sensor body, a base fixedly connected to the lower end of the sealing box, a pressing plate slidably connected to one end wall of the base, a clamp slidably connected to the upper end of one side of the base, a measuring rod fixedly connected to one side of the sensor body, a measuring ring slidably connected to the measuring rod, an oil-proof layer provided on the outer walls of the measuring rod and the measuring ring, a first cleaning mechanism provided in the sealing box, and a second cleaning mechanism provided in the measuring ring. The present invention can drive the measuring ring to move through the movement of the first cleaning mechanism, and at the same time cooperate with the second cleaning mechanism, the oil-proof layer and the heat dissipation fan to not only dissipate heat for the sensor body, but also process the oil stains on the surface of the measuring rod, thereby preventing the movement of the measuring ring from being affected by the oil stains due to the adsorption of dust.

Description

Technical Field

[0001] The invention relates to the technical field of magnetostrictive sensors, in particular to a magnetostrictive sensor with high sealing performance and a self-cleaning function. Background Art

[0002] The magnetostrictive liquid level sensor is a high-precision, ultra-long-stroke absolute position measurement sensor manufactured using the magnetostrictive principle. It consists of a pulse circuit, a waveguide, an echo signal unit, a structural component, and a protective sleeve. It has the characteristics of high precision, reliable stability, long life, easy installation, and a variety of output modes to choose from. It can not only measure the linear displacement of a moving object, but also give the displacement and speed analog signals of the moving object. Due to the non-contact measurement method, the sensor has stable performance, long service life, and a variety of output modes to choose from. Therefore, it is widely used in equipment in industries such as petrochemicals, food, water treatment, environmental protection, pesticides, papermaking, reservoirs, dyes, and hydraulic machinery. Its working principle is: when measuring, the pulse generator generates a waveguide pulse, which is converted into a current pulse propagating along the waveguide line after being processed by the electronic part, namely the start pulse. The magnetic field generated by it is superimposed with the magnetic field formed by the magnetic ring to generate an instantaneous torque, causing the waveguide line to twist and generate a tension pulse. This pulse is transmitted back along the waveguide line at a fixed speed, generating an induced current pulse, namely the end pulse, at both ends of the coil. By measuring the time difference between the start pulse and the end pulse, the liquid level or displacement can be accurately measured.

[0003] However, due to the working environment problems, the existing magnetostrictive displacement sensor and the surface of the measuring rod are prone to dripping oil stains, and the oil stains are easy to stick to the dust floating in the air, and the oil stains are difficult to clean. In addition, the contamination of oil stains can easily affect the movement of the measuring ring, thereby greatly reducing the accuracy of the measurement, and the accumulation of oil stains for a long time can easily cause damage to the measuring rod. Summary of the invention

[0004] The object of the present invention is to provide a magnetostrictive sensor with high sealing performance and self-cleaning function to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a magnetostrictive sensor with high sealing performance and self-cleaning function, comprising a sensor body, a sealing box movably provided on the outer wall of the sensor body, a base fixedly connected to the lower end of the sealing box, a pressing plate slidably connected to the wall of one end of the base, two symmetrically distributed clamping plates slidably connected to the upper end of one side of the base, a measuring rod fixedly connected to one side of the sensor body, a measuring ring slidably connected to the outer wall of the measuring rod, an oil-proof layer is provided on the outer walls of the measuring rod and the measuring ring, a handle slidably connected to the upper end of the sealing box, a first cleaning mechanism is provided in the sealing box, a second cleaning mechanism is provided in the measuring ring, and a movable mechanism is connected to the lower end of the handle.

[0006] In a preferred embodiment: the first cleaning mechanism includes a motor fixedly connected to the inner wall of the sealing box, the lower end shaft of the motor is connected to the first rotating shaft, the inner wall of the sealing box is rotatably connected to two symmetrically distributed second rotating shafts, the lower end inner wall of the sealing box is rotatably connected to a third rotating shaft, the first rotating shaft and the outer wall of one of the second rotating shafts are fixedly connected to a first transmission wheel, the two first transmission wheels are connected by a first transmission belt, the third rotating shaft and the outer wall of another second rotating shaft are fixedly connected to a second transmission wheel, the two second transmission wheels are connected by a second transmission belt, the first rotating shaft is connected to the third rotating shaft through a transmission mechanism, one end of the two second rotating shafts is fixedly connected to a first bevel gear, the first bevel gear is meshed with a second bevel gear, the inner wall of the second bevel gear The cam is fixedly connected to the wall with a fourth rotating shaft, one side of the fourth rotating shaft is fixedly connected to an eccentric wheel, the lower end of the eccentric wheel is provided with a roller, one end of the roller is rotatably connected to a connecting column, an outer wall of the connecting column is slidably connected to a fixing plate, one side of the fixing plate is fixedly connected to an inner wall of the sealing box, the connecting column and the sealing box are fixedly connected to two symmetrically distributed first connecting blocks slidably connected to the base, the two first connecting blocks are connected to the pressing plate through a clamping mechanism, the upper end of one of the first connecting blocks is fixedly connected to the third rotating shaft, the lower end of the other first connecting block is fixedly connected to a rotating wheel, the lower end of the rotating wheel is hinged with a connecting rod, one side of the connecting rod is slidably connected to a first slide plate, one side of the first slide plate is fixedly connected to a connecting frame, and the bottom ends of the two clamping plates are slidably connected to the connecting frame.

[0007] In a preferred embodiment: the movable mechanism includes a first baffle fixedly connected to the upper end of the sensor body, a second baffle slidably connected in the sealing box, a first tooth plate fixedly connected to the upper end of the second baffle, the first tooth plate meshingly connected to the gear, the gear meshingly connected to the second tooth plate, a second connecting block fixedly connected to the upper end of the second tooth plate, the second connecting block is slidably connected to the wall of the sealing box, the upper end of the second connecting block is fixedly connected to the handle, and a first sealing rubber strip is provided around the outer walls of the second connecting block.

[0008] In a preferred embodiment: a fifth rotating shaft is rotatably connected to one side wall of the sealing box, a rotating plate is rotatably connected to the outer wall of the fifth rotating shaft, a torsion spring is provided at the connection between the rotating plate and the fifth rotating shaft, a first clamping plate is slidably connected to the wall of the rotating plate, a second spring is fixedly connected between the first clamping plate and the rotating plate, a second sealing rubber strip is provided at the lower end of the first clamping plate, and the arrangement of the rotating plate and the first clamping plate facilitates the movement of the first baffle and can also clamp the sensor body.

[0009] In a preferred embodiment: the transmission mechanism includes a sixth rotating shaft rotatably connected to the inner wall of the sealing box, a third transmission wheel is fixedly connected to the outer wall of the upper end of the sixth rotating shaft and the outer wall of the first rotating shaft, the two third transmission wheels are connected by a third transmission belt, a fourth transmission wheel is fixedly connected to the outer wall of the lower end of the sixth rotating shaft and the outer wall of the third rotating shaft, the two fourth transmission wheels are connected by a fourth transmission belt, the third rotating shaft and one end of the first rotating shaft are fixedly connected to a cooling fan, and the cooling fan can be used to dissipate heat for the sensor body, thereby increasing the service life of the sensor body.

[0010] In a preferred embodiment: the locking mechanism includes a second clamping plate fixedly connected to the lower end of one of the first connecting blocks, and a clamping groove matching the second clamping plate is provided on the upper end wall of the other first connecting block; a sliding groove is provided at the lower end of one of the first connecting blocks, a second slide plate is slidably connected in the sliding groove, and a third spring is fixedly connected to the lower end of the second slide plate, one end of the third spring is fixedly connected to the other first connecting block, a partition plate is movably provided between the two first connecting blocks, one end of the partition plate is fixedly connected to the pressing plate, and a third sealing rubber strip is connected between the pressing plate and the base; through the provision of the second clamping plate and the clamping groove, the first connecting block at the upper end can be used to drive the first connecting block at the lower end to rotate.

[0011] In a preferred embodiment: the upper end of one of the clamps is rotatably connected to the third clamping plate, the upper end of the other clamping plate is fixedly connected to a clamping column matching the third clamping plate, the upper end of one of the clamps is fixedly connected to a fourth spring, one end of the fourth spring is fixedly connected to the third clamping plate, and the upper end of the clamping column is fixedly connected to a limiting plate. By setting the limiting plate, the third clamping plate can be prevented from detaching from the upper end of the clamping column due to accidental reasons.

[0012] In a preferred embodiment: the second cleaning mechanism includes two symmetrically distributed hydraulic cylinders fixedly connected to the inner wall of the measuring ring, one end of the hydraulic cylinder is fixedly connected to a brush, the brush is slidably connected to the wall of the measuring ring, and a fourth sealing rubber strip is fixedly provided on the outer wall of the brush. The setting of the hydraulic cylinder facilitates the movement of the brush.

[0013] In a preferred embodiment: a fourth clamping plate is slidably connected to one side wall of the sealing box, a fifth sealing rubber strip is fixedly provided on the outer wall of the fourth clamping plate, and an impact block is fixedly connected to one end of the connecting column. The arrangement of the fourth clamping plate and the fifth sealing rubber strip further increases the sealing performance of the sealing box and the fixing effect on the sensor body.

[0014] In a preferred embodiment: a buffer pad is fixedly provided at one end of the impact block, a telescopic plate is fixedly connected between the base and the clamp, and a sixth sealing rubber strip is provided on the outer walls of the clamp and the telescopic plate. By setting the buffer pad, damage to the sensor body caused by long-term impact can be avoided.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0016] 1. The present invention can drive the measuring ring to move through the movement of the first cleaning mechanism. At the same time, the second cleaning mechanism, the oil-proof layer and the heat dissipation fan are used to dissipate heat for the sensor body and to process the oil stains on the surface of the measuring rod, thereby preventing the movement of the measuring ring from being affected by the oil stains due to the absorption of dust, thereby greatly reducing the measurement accuracy. The treatment of the oil stains can increase the service life of the measuring rod. At the same time, the sealing box can prevent the oil stains from dripping onto the sensor body. The pressing plate drives the locking mechanism to be locked between the two first connecting blocks, thereby freely controlling the movement of the measuring ring, thereby facilitating the measurement of data.

[0017] 2. The present invention drives the movement of the baffle plate and then the first transmission mechanism through the movement of the sensor body, thereby driving the handle to move out of the sealing box, which facilitates the staff's work of moving the sensor body and avoids the device falling out of the hands due to unexpected reasons when the entire device needs to be moved, thereby causing damage to the sensor body. The fifth rotating shaft, the rotating plate, the first clamping plate and the fourth clamping plate can not only increase the clamping and fixing work of the sensor body, but also greatly increase the sealing inside the sealing box in conjunction with the setting of multiple sealing rubber strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 The present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0021] Figure 3 It is a left-side structural schematic diagram of two clamping plates of the present invention;

[0022] Figure 4 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the connection structure of the eccentric wheel, the roller, the connecting column, the fixing plate and the first spring of the present invention;

[0024] Figure 6 It is a schematic diagram of the top view of the upper ends of the two clamping plates of the present invention;

[0025] Figure 7 It is a schematic diagram of the left-side structure of the inner part of the measuring ring of the present invention;

[0026] In the figure: 1. sensor body; 2. sealing box; 3. base; 4. pressing plate; 5. clamping plate; 6. measuring rod; 7. measuring ring; 8. oil-proof layer; 9. handle; 10. motor; 11. first rotating shaft; 12. second rotating shaft; 13. third rotating shaft; 14. first transmission wheel; 15. first transmission belt; 16. second transmission wheel; 17. second transmission belt; 18. first bevel gear; 19. second bevel gear; 20. fourth rotating shaft; 21. eccentric wheel; 22. roller; 23. connecting column; 24. fixing plate; 25. first spring; 26. A connecting block; 27, a rotating wheel; 28, a connecting rod; 29, a first slide; 30, a connecting frame; 31, a first baffle; 32, a second baffle; 33, a first tooth plate; 34, a gear; 35, a second tooth plate; 36, a second connecting block; 37, a fifth rotating shaft; 38, a rotating plate; 39, a first clamping plate; 40, a sixth rotating shaft; 41, a third transmission wheel; 42, a fourth transmission wheel; 43, a second clamping plate; 44, a second slide; 45, a partition; 46, a third clamping plate; 47, a clamping column; 48, a brush; 49, a fourth clamping plate; 50, a collision block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 7 The present invention provides a technical solution: a magnetostrictive sensor with high sealing performance and self-cleaning function, comprising a sensor body 1, a sealing box 2 is movably provided on the outer wall of the sensor body 1, a base 3 is fixedly connected to the lower end of the sealing box 2, a pressing plate 4 is slidably connected to one end wall of the base 3, two symmetrically distributed clamping plates 5 are slidably connected to the upper end of one side of the base 3, a measuring rod 6 is fixedly connected to one side of the sensor body 1, a measuring ring 7 is slidably connected to the outer wall of the measuring rod 6, an oil-proof layer 8 is provided on the outer walls of the measuring rod 6 and the measuring ring 7, a handle 9 is slidably connected to the upper end of the sealing box 2, a first cleaning mechanism is provided in the sealing box 2, and a second cleaning mechanism is provided in the measuring ring 7.

[0029] Furthermore, the first cleaning mechanism includes a motor 10 fixedly connected to the inner wall of the sealing box 2, the lower end of the motor 10 is axially connected to a first rotating shaft 11, the inner wall of the sealing box 2 is rotatably connected to two symmetrically distributed second rotating shafts 12, the lower end inner wall of the sealing box 2 is rotatably connected to a third rotating shaft 13, the first rotating shaft 11 and one of the second rotating shafts 12 are both fixedly connected to a first transmission wheel 14 on the outer wall, the two first transmission wheels 14 are connected by a first transmission belt 15, the third rotating shaft 13 is fixedly connected to the outer wall of another second rotating shaft 12 with a second transmission wheel 16, the two second transmission wheels 16 are connected by a second transmission belt 17, the first rotating shaft 11 is connected to the third rotating shaft 11 through a transmission mechanism The shaft 13 is transmission connected, one end of the two second rotating shafts 12 are fixedly connected with the first bevel gear 18, the first bevel gear 18 is meshingly connected with the second bevel gear 19, the inner wall of the second bevel gear 19 is fixedly connected with the fourth rotating shaft 20, one side of the fourth rotating shaft 20 is fixedly connected with an eccentric wheel 21, the lower end of the eccentric wheel 21 is provided with a roller 22, one end of the roller 22 is rotatably connected with a connecting column 23, the outer wall of the connecting column 23 is slidably connected with a fixing plate 24, one side of the fixing plate 24 is fixedly connected to the inner wall of the sealing box 2, a first spring 25 is fixedly connected between the connecting column 23 and the sealing box 2, two symmetrically distributed first connecting blocks 26 are slidably connected in the base 3, and the two first connecting blocks 2 6 is connected to the pressing plate 4 through a snap-fit ​​mechanism, wherein the upper end of one of the first connecting blocks 26 is fixedly connected to the third rotating shaft 13, and the lower end of the other first connecting block 26 is fixedly connected to a rotating wheel 27, and the lower end of the rotating wheel 27 is hinged with a connecting rod 28, and one side of the connecting rod 28 is slidably connected to a first slide plate 29, and one side of the first slide plate 29 is fixedly connected to a connecting frame 30, and the bottom ends of the two clamping plates 5 are slidably connected to the connecting frame 30, and the transmission mechanism includes a sixth rotating shaft 40 rotatably connected to the inner wall of the sealing box 2, and the outer wall of the upper end of the sixth rotating shaft 40 is fixedly connected to the outer wall of the first rotating shaft 11 with a third transmission wheel 41, and the two third transmission wheels 41 are connected through a third transmission belt. The outer wall of the lower end and the outer wall of the third rotating shaft 13 are fixedly connected with a fourth transmission wheel 42, and the two fourth transmission wheels 42 are connected by a fourth transmission belt. The third rotating shaft 13 and one end of the first rotating shaft 11 are fixedly connected with a cooling fan. As the first rotating shaft rotates, the sixth rotating shaft can be driven to rotate through the third rotating wheel and the third transmission, and then the third rotating shaft is driven to rotate through the fourth transmission wheel and the fourth transmission belt, so that the first rotating shaft and the third rotating shaft rotate synchronously. The clamping mechanism includes a second clamping plate 43 fixedly connected to the lower end of one of the first connecting blocks 26, and a clamping groove matching the second clamping plate 43 is provided on the upper end wall of the other first connecting block 26, and a sliding groove is provided at the lower end of one of the first connecting blocks 26.A second slide plate 44 is slidably connected in the slide groove, and a third spring is fixedly connected to the lower end of the second slide plate 44, one end of the third spring is fixedly connected to another first connecting block 26, and a partition plate 45 is movably provided between the two first connecting blocks 26, one end of the partition plate 45 is fixedly connected to the pressing plate 4, and a third sealing rubber strip is connected between the pressing plate 4 and the base 3. When the measuring ring needs to be moved, the pressing plate is moved forward, so that the partition plate is no longer stuck between the two first connecting blocks, and then the second clamping plate is clamped into the inside of the clamping groove under the action of the third spring, so that The first connecting block at the upper end can drive the first connecting block at the lower end to rotate, the upper end of one of the clamping plates 5 is rotatably connected to the third clamping plate 46, and the upper end of the other clamping plate 5 is fixedly connected to the clamping column 47 matching the third clamping plate 46, the upper end of one of the clamping plates 5 is fixedly connected to the fourth spring, one end of the fourth spring is fixedly connected to the third clamping plate 46, and the upper end of the clamping column 47 is fixedly connected to the limit plate, as the two clamping plates clamp the outer wall of the measuring ring, the third clamping plate can be clamped on the clamping column through the fourth spring, thereby completing the fixation of the positions of the two clamping plates.

[0030] Furthermore, the second cleaning mechanism includes two symmetrically distributed hydraulic cylinders fixedly connected to the inner wall of the measuring ring 7, one end of the hydraulic cylinder is fixedly connected to a brush 48, the brush 48 is slidably connected to the wall of the measuring ring 7, and a fourth sealing rubber strip is fixedly provided on the outer wall of the brush 48. With the start-up of the hydraulic cylinder, the brush can contact the oil-proof layer for secondary cleaning.

[0031] Furthermore, a fourth clamping plate 49 is slidably connected to one side wall of the sealing box 2, a fifth sealing rubber strip is fixedly provided on the outer wall of the fourth clamping plate 49, and an impact block 50 is fixedly connected to one end of the connecting column 23. The setting of the fourth clamping plate and the fifth sealing rubber strip further increases the sealing performance of the sealing box and the fixing effect on the sensor body.

[0032] Furthermore, a buffer pad is fixedly provided at one end of the impact block 50, a telescopic plate is fixedly connected between the base 3 and the clamp 5, and a sixth sealing rubber strip is provided on the outer walls of the clamp 5 and the telescopic plate. By setting the buffer pad, damage to the sensor body caused by long-term impact can be avoided.

[0033] The working principle of the present invention is as follows: when in use, after the sensor body 1 is installed, the fourth clamping plate 49 clamps and fixes the sensor body 1 under the action of the fifth spring fixedly connected at one end, and at the same time, a sealing effect is achieved through the setting of the fifth sealing rubber strip. As the installation of the sensor body 1 is completed, the two clamping plates 5 are moved toward each other to clamp the outer wall of the measuring ring 7, and then the third clamping plate 46 is clamped on the clamping column 47 through the fourth spring, thereby completing the fixation of the positions of the two clamping plates 5, and finally starting the motor 10, which starts to drive the first rotating shaft 11 to rotate, thereby driving the third transmission The wheel 41 rotates, thereby driving the sixth rotating shaft 40 to rotate through the third transmission belt. The rotation of the sixth rotating shaft 40 drives the third rotating shaft 13 to rotate through the fourth transmission wheel 42 and the fourth transmission belt. The synchronous rotation of the first rotating shaft 11 and the third rotating shaft 13 drives the two symmetrically distributed second rotating shafts 12 to rotate synchronously through the first transmission wheel 14, the first transmission belt 15, the second transmission wheel 16 and the second transmission belt 17. The rotation of the second rotating shaft 12 drives the first bevel gear 18 to rotate, and then drives the second bevel gear 19 to rotate, thereby driving the fourth rotating shaft 20 to rotate, and then drives the eccentric wheel 21 to rotate. The rotation of the eccentric wheel 21 drives the connecting column 23 to move downward through the roller 22, and then drives the two impact blocks 50 to continuously knock the sensor body 1, so that the sensor body 1 vibrates, and then the oil stains on the working measuring rod 6 drip down. The oil-proof layer is made of Teflon material. At the same time, the rotation of the third rotating shaft 13 drives the first connecting block 26 at the upper end to rotate, and then drives the first connecting block 26 at the lower end to rotate through the second clamping plate 43 and the clamping slot, thereby driving the rotating wheel 27 to rotate, and then the connecting frame 30 can be driven through the connecting rod 28 and the first slide plate 29. The measuring ring 7 can be moved left and right, and then the clamping plate 5 can be used to drive the measuring ring 7 to move left and right. When the measuring ring 7 does not need to be driven to move, the pressing plate 4 is pressed backward, the partition plate 45 is inserted between the two first connecting blocks 26, and the second clamping plate 43 is disengaged from the clamping groove. The first connecting block 26 at the upper end cannot drive the first connecting block 26 at the lower end to rotate, and then the measuring ring 7 no longer moves. When the measuring rod 6 needs to be cleaned again, the sensor body 1 is closed, and then the hydraulic cylinder is started, so that the two brushes 48 contact the surface of the measuring rod 6, and then as the measuring ring 7 moves left and right, the surface of the measuring rod 6 is continuously cleaned more vigorously.

[0034] See also Figure 1The present invention provides a technical solution: a magnetostrictive sensor with high sealing performance and self-cleaning function, wherein the lower end of the handle 9 is connected to a movable mechanism, and the movable mechanism includes a first baffle 31 fixedly connected to the upper end of the sensor body 1, and a second baffle 32 is slidably connected in the sealing box 2, and a first tooth plate 33 is fixedly connected to the upper end of the second baffle 32, and the first tooth plate 33 is meshingly connected to a gear 34, and the gear 34 is meshingly connected to a second tooth plate 35, and a second connecting block 36 is fixedly connected to the upper end of the second tooth plate 35, and the second connecting block 36 is slidably connected to the wall of the sealing box 2, and the upper end of the second connecting block 36 The end is fixedly connected to the handle 9, and a first sealing rubber strip is arranged around the outer walls around the second connecting block 36. A fifth rotating shaft 37 is rotatably connected to a wall of one side of the sealing box 2, and a rotating plate 38 is rotatably connected to the outer wall of the fifth rotating shaft 37. A torsion spring is provided at the connection between the rotating plate 38 and the fifth rotating shaft 37, and a first clamping plate 39 is slidably connected to the wall of the rotating plate 38. A second spring is fixedly connected between the first clamping plate 39 and the rotating plate 38, and a second sealing rubber strip is provided at the lower end of the first clamping plate 39. As the first baffle moves into the interior of the sealing box, the rotating plate can be driven to rotate along with the rotation of the fifth rotating shaft through the first clamping plate.

[0035] The working principle of the present invention is as follows: when in use, the measuring rod 6 is installed from the left side to the right side of the sealing box 2. As the sensor body 1 moves, the first baffle 31 drives the first clamping plate 39 to rotate counterclockwise on one side of the sealing box 2 through the rotating plate 38. Then, when the first baffle 31 moves to a certain position, the rotating plate 38 rotates back to its original position clockwise under the action of the torsion spring. At the same time, the lower end of the first clamping plate 39 clamps the outer wall of the sensor body 1. By providing a seventh sealing rubber strip at the connection between the lower end of the sensor body 1 and the sealing box 2, the sealing performance inside the sealing box 2 is further increased. Then, as the sensor body 1 moves to the right, the first baffle 31 moves to the right, and the first baffle 31 moves to the right and drives the second baffle 32 to slide to the right, thereby driving the first tooth plate 33 to move to the right, and then driving the gear 34 to rotate. The rotation of the gear 34 drives the second tooth plate 35 to move upward, and then drives the second connecting block 36 to slide upward along the through hole at the upper end of the sealing box 2, so that the handle 9 moves upward. When the sensor body 1 is installed, the handle 9 extends out of the sealing box 2, and at the same time, the first sealing rubber strip just fits against the inner wall of the through hole to play a sealing role.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetostrictive sensor with high sealing performance and self-cleaning function, comprising a sensor body (1), characterized in that: A sealing box (2) is movably provided on the outer wall of the sensor body (1); a base (3) is fixedly connected to the lower end of the sealing box (2); a pressing plate (4) is slidably connected to one end wall of the base (3); two symmetrically distributed clamping plates (5) are slidably connected to the upper end of one side of the base (3); a measuring rod (6) is fixedly connected to one side of the sensor body (1); a measuring ring (7) is slidably connected to the outer wall of the measuring rod (6); an oil-proof layer (8) is provided on the outer walls of the measuring rod (6) and the measuring ring (7); a handle (9) is slidably connected to the upper end of the sealing box (2); a first cleaning mechanism is provided in the sealing box (2); a second cleaning mechanism is provided in the measuring ring (7); and a movable mechanism is connected to the lower end of the handle (9); The first cleaning mechanism comprises a motor (10) fixedly connected to the inner wall of the sealing box (2); the lower end of the motor (10) is axially connected to a first rotating shaft (11); two symmetrically distributed second rotating shafts (12) are rotatably connected to the inner wall of the sealing box (2); a third rotating shaft (13) is rotatably connected to the inner wall of the lower end of the sealing box (2); the first rotating shaft (11) and the outer wall of one of the second rotating shafts (12) are both fixedly connected to a first transmission wheel (14); the two first transmission wheels (14) are connected in transmission via a first transmission belt (15); A second transmission wheel (16) is fixedly connected to the outer wall of the third rotating shaft (13) and another second rotating shaft (12); the two second transmission wheels (16) are transmission-connected via a second transmission belt (17); the first rotating shaft (11) is transmission-connected to the third rotating shaft (13) via a transmission mechanism; one end of the two second rotating shafts (12) is fixedly connected to a first bevel gear (18); the first bevel gear (18) is meshingly connected to a second bevel gear (19); a fourth rotating shaft (20) is fixedly connected to the inner wall of the second bevel gear (19) One side of the fourth rotating shaft (20) is fixedly connected to an eccentric wheel (21), a roller (22) is provided at the lower end of the eccentric wheel (21), one end of the roller (22) is rotatably connected to a connecting column (23), a fixing plate (24) is slidably connected to the outer wall of the connecting column (23), one side of the fixing plate (24) is fixedly connected to the inner wall of the sealing box (2), a first spring (25) is fixedly connected between the connecting column (23) and the sealing box (2), two symmetrically distributed first connecting blocks (26) are slidably connected in the base (3), and the two The first connecting blocks (26) are connected to the pressing plate (4) through a snap-fit ​​mechanism, the upper end of one of the first connecting blocks (26) is fixedly connected to the third rotating shaft (13), the lower end of the other first connecting block (26) is fixedly connected to a rotating wheel (27), the lower end of the rotating wheel (27) is hinged with a connecting rod (28), one side of the connecting rod (28) is slidably connected to a first slide plate (29), one side of the first slide plate (29) is fixedly connected to a connecting frame (30), and the bottom ends of the two clamping plates (5) are slidably connected to the connecting frame (30); The movable mechanism comprises a first baffle (31) fixedly connected to the upper end of the sensor body (1); a second baffle (32) is slidably connected in the sealing box (2); a first tooth plate (33) is fixedly connected to the upper end of the second baffle (32); the first tooth plate (33) is meshingly connected to a gear (34); the gear (34) is meshingly connected to a second tooth plate (35); a second connecting block (36) is fixedly connected to the upper end of the second tooth plate (35); the second connecting block (36) is slidably connected to the wall of the sealing box (2); the upper end of the second connecting block (36) is fixedly connected to the handle (9); and a first sealing rubber strip is arranged around the outer wall of the second connecting block (36); A fifth rotating shaft (37) is rotatably connected to a side wall of the sealing box (2); a rotating plate (38) is rotatably connected to an outer wall of the fifth rotating shaft (37); a torsion spring is provided at a connection between the rotating plate (38) and the fifth rotating shaft (37); a first clamping plate (39) is slidably connected to the wall of the rotating plate (38); a second spring is fixedly connected between the first clamping plate (39) and the rotating plate (38); and a second sealing rubber strip is provided at the lower end of the first clamping plate (39); The transmission mechanism comprises a sixth rotating shaft (40) rotatably connected to the inner wall of the sealing box (2); a third transmission wheel (41) is fixedly connected on the outer wall of the upper end of the sixth rotating shaft (40) and the outer wall of the first rotating shaft (11); the two third transmission wheels (41) are connected by a third transmission belt; a fourth transmission wheel (42) is fixedly connected on the outer wall of the lower end of the sixth rotating shaft (40) and the outer wall of the third rotating shaft (13); the two fourth transmission wheels (42) are connected by a fourth transmission belt; and a cooling fan is fixedly connected to one end of the third rotating shaft (13) and the first rotating shaft (11); The locking mechanism comprises a second clamping plate (43) fixedly connected to the lower end of one of the first connecting blocks (26); a clamping groove matching the second clamping plate (43) is provided on the upper end wall of the other first connecting block (26); a sliding groove is provided at the lower end of one of the first connecting blocks (26); a second slide plate (44) is slidably connected in the sliding groove; a third spring is fixedly connected to the lower end of the second slide plate (44); one end of the third spring is fixedly connected to the other first connecting block (26); a partition plate (45) is movably provided between the two first connecting blocks (26); one end of the partition plate (45) is fixedly connected to the pressing plate (4); and a third sealing rubber strip is connected between the pressing plate (4) and the base (3).

2. The magnetostrictive sensor with high sealing performance and self-cleaning function according to claim 1, characterized in that: The upper end of one of the clamping plates (5) is rotatably connected to a third clamping plate (46), and the upper end of the other clamping plate (5) is fixedly connected to a clamping column (47) matching the third clamping plate (46). The upper end of one of the clamping plates (5) is fixedly connected to a fourth spring, one end of the fourth spring is fixedly connected to the third clamping plate (46), and the upper end of the clamping column (47) is fixedly connected to a limiting plate.

3. The magnetostrictive sensor with high sealing performance and self-cleaning function according to claim 1, characterized in that: The second cleaning mechanism comprises two symmetrically distributed hydraulic cylinders fixedly connected to the inner wall of the measuring ring (7), one end of the hydraulic cylinder is fixedly connected to a brush (48), the brush (48) is slidably connected to the wall of the measuring ring (7), and a fourth sealing rubber strip is fixedly provided on the outer wall of the brush (48).

4. The magnetostrictive sensor with high sealing performance and self-cleaning function according to claim 1, characterized in that: A fourth clamping plate (49) is slidably connected to one side wall of the sealing box (2), a fifth sealing rubber strip is fixedly provided on the outer wall of the fourth clamping plate (49), and an impact block (50) is fixedly connected to one end of the connecting column (23).

5. The magnetostrictive sensor with high sealing performance and self-cleaning function according to claim 4, characterized in that: A buffer pad is fixedly provided at one end of the impact block (50), a telescopic plate is fixedly connected between the base (3) and the clamping plate (5), and a sixth sealing rubber strip is provided on the outer walls of the clamping plate (5) and the telescopic plate.

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